Caravanserai or Khan

A caravanserai, or khan, or fondouk, also Han (in Turkish), also known as caravansary, caravansera, or caravansara in English or Sarai in Indian subcontinent (Persian: كاروانسرا kārvānsarā or کاروانسرای kārvānsarāi, Turkish: kervansaray) was a roadside inn where travelers could rest and recover from the day's journey. Caravanserais supported the flow of commerce, information, and people across the network of trade routes covering Asia, North Africa, and southeastern Europe, especially along the Silk Road.

These were found frequently along the Persian Empire's Royal Road, a 2,500-kilometre (1,600 mi) long ancient highway that stretched from Sardis to Susa according to Herodotus: "Now the true account of the road in question is the following:- Royal stations exist along its whole length, and excellent caravansaries; and throughout, it traverses an inhabited tract, and is free from danger."